Răspuns :
Răspuns:
2+3+...+100= 100(100+1)/2 - 1= 100×101/2 - 1= 50×101-1=5050-1=5049
2 + 3 + .. + 100 =
= (1 + 2 + 3 + .. + 100) - 1
= 100×101/2 - 1
= 50×101 - 1
= 5050 - 1
= 5049
Răspuns:
2+3+...+100= 100(100+1)/2 - 1= 100×101/2 - 1= 50×101-1=5050-1=5049
2 + 3 + .. + 100 =
= (1 + 2 + 3 + .. + 100) - 1
= 100×101/2 - 1
= 50×101 - 1
= 5050 - 1
= 5049